Doxygen adjustment, and better directory name for GCryptLib

GCryptLib/include/Cipher.h

@@ -0,0 +1,39 @@
+#pragma once
+#include "Feistel.h"
+#include "Flexblock.h"
+
+namespace Leonetienne::GCrypt {
+  /** Class to apply a block cipher to messages of arbitrary length in a distributed manner
+  */
+  class Cipher {
+  public:
+    explicit Cipher(const Block& key);
+    explicit Cipher(const std::string& password);
+
+    Cipher(const Cipher& other) = delete;
+    Cipher(Cipher&& other) noexcept = delete;
+
+    ~Cipher();
+
+    //! Will set the key
+    void SetKey(const Block& key);
+
+    //! Will set the key from a password
+    void SetPassword(const std::string& password);
+
+    //! Will encipher a flexblock of data
+    Flexblock Encipher(const Flexblock& data, bool printProgress = false) const;
+
+    //! Will decipher a flexblock of data
+    Flexblock Decipher(const Flexblock& data, bool printProgress = false) const;
+
+  private:
+    Block key;
+
+    //! Will zero the memory used by the key
+    void ZeroKeyMemory();
+
+    // Initial value for cipher block chaining
+    Block initializationVector;
+  };
+}